Apparatus for refining pulp stuff and the like.



T. H. NASH. APPARATUS FOR REFINING PULP STUFF AND THE LIKE.

APPLICATION FILED JULY 24, I914.

Patented May 18, 1915.

l lml lo THO-MAS HENRY NASH, OF ST, PAULS CRAY, ENGLAND.

APPARATUS FOR REFINING PULP STUFF AND THE LIKE.

Specification of Letters Patent.

Patented May as, rain.

Application filed July 24, 1914-. Serial No. 852,907.

To all whom it may concern Be it known that I, THOMAS HENRY NASH,

a subject of the King of Great Britain and paper.

My invention has for its object to provide a simplified construction and combination of apparatus which requires less driving power, and expedites the treatment, and which comprises units performing their own work or functions independently of theothers, and enabling their operations to be I better regulated.

According to my invention, I provide a container for mixing the stuff and which may be adapted to automatically eliminate or separate pieces of metal or other heavy objects in the stuff, a beating engine comprising one or more beater rolls and arranged approximately on a' level with the container and in such manner that the stud gravitates through the beating engine, a

regulable chute or gate connecting the beating engine with the container, and a circulator or other means and an uptake for returning the stufi from the beating engine to the container.

In'the operation of the improved means, the supply of stufi to the beating engine can be regulated by the-chute or ate in such manner that an even beating action and even driving power is required.

My invention is illustrated, by way of example, in the accompanying drawings, in wl11ch:

Figure 1 is an elevation; and Fig. 2 is a plan.

In the drawings, the numeral 3 indicates a container for mixing the stud, having a depressed, well-shaped or semi-circular bottom, 4, and a zig-zag-like mixing frame or agitator, 5, rotatably mounted in bearings in the ends of the container. Pieces of iron or other heavy objects in the stufi' descend to the lowest part of the container bottom and are not liable to pass to the stuff outlet, hereinafter referred to.

At a level somewhat above the lowest point of the container is a stuff outlet, 6, which communicates with one end of a chute 7 the other end of which opens on to an inclined feed plate, 8, of a beating engine. The outlet, 6, from the container is furnished with an adjustable gate or valve, 9, so that the amount of stufi flowing to the beating engine can be readily regulated.

The beating engine may comprise one or a plurality of beater rolls, 10, and the inclined feed plate or bottom, 8, of the latter discharges the material into the intake, 11, of a circulator, 12, by which it is forced through a pipe, 13, back to the opposite end of the container, 3, from which it was discharged, wherein it is remixed, and whence it is redischarged for repeated treatment.

It will be noticed that the mixing container and beating engine are on the same floor, and that but little power is required to work the circulator. Further, that the supply of stuff to the beating engine is independent of thecirculator, which is merely used to return the stud from the beating engine to the mixing container, the stuff gravitating through the beating engine.

The heater rolls may be adjusted with regard to the bed plate by levers, 14, or screws, in any convenient manner. The mixing frame or agitator, 5, may be driven by gearing, 15; the beater rolls may be driven by pulleys, 16; and the circulator may be driven by pulleys, 17.

The pulleys of the beater rolls are preferably arranged between bearings, so that the pull of the driving belt may help to retain the rolls in place. The container, the easing of the beating engine and the chute are preferably constructed of non-metallic material to prevent the stufi from becoming soiled as happens when iron or the like is employed in their structure and comes into contact with the stud.

What 1' claim as my invention and desire to secure by Letters Patent is 1. Apparatus for refining pulp, stuff and the like for use in the manufacture of paper comprising, in combination, a mixing container, a beating engine arranged approximately on a level therewith and in such manner that the stuff gravitates through the beating engine, a regulable chute connecting lid!) the container to the beating engine, a circulator connected to the beating engine, and an uptake connecting the circulator to the container, for returning the stufi from the beating engine to the container, substantially as described.

2. Apparatus for refining pulp, stuff and the like for use in the manufacture of paper comprising, in combination, a mixing container, abeating engine arranged approXi-' matelyv on a level therewith, a chute connecting the container to the beating engine, an adjustable valve for controlling the amount of stuff flowing from the container through the chute to the beating engine, and means for returning the stuff from the beating engine to the container, substantially as described.

3. Apparatus for refining pulp, stuii and the like for use in the manufacture of paper comprising, in combination, a mixing container, a beating engine arranged approximately on a level therewith, a regulable chute connecting the container to the beating engine, said beating engine having an inclined feed plate, and means for returningmately on a level therewith and comprising a pluralityof beater rolls and a plurality of bed plates arranged in tandem, inclined feed plates leading to each beater roll and bed plate, a regulable chute connecting the container to the first feed plate, means for independently adjusting the beater rolls with regard to the bed plates, and Qineans for returning the stufl from the beating engine to the container, substantially as described. I

In testimony whereof I aflix. my signature, in presence of two subscribing witnesses.

THOMAS 'HENRY NASH.

Witnesses WALTER DAY, ALFRED DAY. 

